n.[C]

1. 車轍；槽；凹痕
   The detective followed the rut made by the jeep.

   偵探追尋著吉普留下的車轍痕跡。

2. 常規，慣例，定例，老規矩
   When you feel stuck in a rut, it is time for you to upgrade your skills.

   感覺自己停滯不前的時候就是應該技術更新的時候。

   fall into a conversational rut

   陷入老生常談

vt.

1. 在……形成車轍；在……挖槽
   The heavy-duty trucks were rutting the road.

   重型卡車在公路上留下車轍。

n.

1. （雄鹿、雄羊等的）發情[U]
2. 發情期[the S]
   During the rut, the male deer can be very irritable.

   在發情期間，公鹿可能很易怒。

   be in the rut

   在發情期

vi.

1. （雄鹿，雄羊等的）發情，動情
   Environment can sometimes alter the rutting age of an animal.

   有時環境可以改變動物發情的年齡。

n.

1. a long deep track made by the repeated passage of the wheels of vehicles.
2. a routine or pattern of behaviour that has become dull and unproductive but is hard to change.

n.

v.